PLATE IX. TYPES OF FRUIT. 



1. White Pine (cone), x \. 



2. White Pine (winged seed), natural size. 



3. Willow (capsules), x J. 



4. Willow (a winged seed), enlarged. 



5. Trembling Aspen (capsules), x 5. 



45. Trembling Aspen (a winged seed), enlarged. 



7. Black Walnut (a nut with indehiscent husk), 



x i. 



8. Hickory (a nut with dehiscent husk), x 1. 



3. American Hornbeam (a nut with 3-lobed 

 bract), x J. 



10 American Hop Hornbeam (a nut inclosed in 

 bladder-like bract), x J. 



11. Black Birch (a membranous strobile), x j. 



12. Black Alder (a woody strobile), x J. 



13. Beech (a nut with prickly bur), x i. 



14. Chestnut (u nut with spiny bur), x J. 



15. Red Oak (an immature acorn), x J. 



16. Red Oak (a mature acorn), x \. 



17. Red Mulberry (an aggregate fruit), x 1. 



